#!/bin/bash

for item in d1 d2 d3 d4;
do
	echo "$item"
done
echo "--------------"

for ((i=1;i<101;i++));
do
#	echo "$i"
	if (($i%2 == 0));then
		sum=$(($sum+$i))
	fi

done
echo "1-100偶数和是：$sum"









exit 0
